28137564

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:449

約数の個数: 144

約数和(自身を含む): 91610400

約数和(自身を除く): 63472836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 84, 91, 98, 108, 117, 126, 147, 156, 182, 189, 196, 234, 252, 273, 294, 351, 364, 378, 409, 441, 468, 546, 588, 637, 702, 756, 818, 819, 882, 1092, 1227, 1274, 1323, 1404, 1636, 1638, 1764, 1911, 2454, 2457, 2548, 2646, 2863, 3276, 3681, 3822, 4908, 4914, 5292, 5317, 5726, 5733, 7362, 7644, 8589, 9828, 10634, 11043, 11452, 11466, 14724, 15951, 17178, 17199, 20041, 21268, 22086, 22932, 25767, 31902, 34356, 34398, 37219, 40082, 44172, 47853, 51534, 60123, 63804, 68796, 74438, 77301, 80164, 95706, 103068, 111657, 120246, 143559, 148876, 154602, 180369, 191412, 223314, 240492, 260533, 287118, 309204, 334971, 360738, 446628, 521066, 541107, 574236, 669942, 721476, 781599, 1004913, 1042132, 1082214, 1339884, 1563198, 2009826, 2164428, 2344797, 3126396, 4019652, 4689594, 7034391, 9379188, 14068782, 28137564]

約数ペア:

[(1, 28137564), (2, 14068782), (3, 9379188), (4, 7034391), (6, 4689594), (7, 4019652), (9, 3126396), (12, 2344797), (13, 2164428), (14, 2009826), (18, 1563198), (21, 1339884), (26, 1082214), (27, 1042132), (28, 1004913), (36, 781599), (39, 721476), (42, 669942), (49, 574236), (52, 541107), (54, 521066), (63, 446628), (78, 360738), (84, 334971), (91, 309204), (98, 287118), (108, 260533), (117, 240492), (126, 223314), (147, 191412), (156, 180369), (182, 154602), (189, 148876), (196, 143559), (234, 120246), (252, 111657), (273, 103068), (294, 95706), (351, 80164), (364, 77301), (378, 74438), (409, 68796), (441, 63804), (468, 60123), (546, 51534), (588, 47853), (637, 44172), (702, 40082), (756, 37219), (818, 34398), (819, 34356), (882, 31902), (1092, 25767), (1227, 22932), (1274, 22086), (1323, 21268), (1404, 20041), (1636, 17199), (1638, 17178), (1764, 15951), (1911, 14724), (2454, 11466), (2457, 11452), (2548, 11043), (2646, 10634), (2863, 9828), (3276, 8589), (3681, 7644), (3822, 7362), (4908, 5733), (4914, 5726), (5292, 5317)]